Search results for "Phase formation"

showing 6 items of 6 documents

Re-entrance phase formation of CeSb thin films

2001

Abstract We report the epitaxial growth of (1 0 0)- and (1 1 1)-oriented CeSb thin films on Al 2 O 3 (1 1 2 0) and (0 0 0 1) substrates by means of molecular beam epitaxy. Depending on the overall Sb-to-Ce flux ratio and the molecular state of Sb x , we observe a re-entrance behavior in the phase formation and orientation of CeSb on Al 2 O 3 (1 1 2 0) . This behavior is shown to exhibit, in some respect, similarities to III–V compound growth, but also more complexities due to the instability of the rare earth component against oxidation. A geometric orientation selection model is suggested which reproduces the observed re-entrance behavior as well as the overall CeSb growth rate.

Condensed matter physicsChemistryStereochemistryHeterojunctionCondensed Matter PhysicsEpitaxyInstabilityPhase formationFlux ratioInorganic ChemistryMaterials ChemistryGrowth rateThin filmMolecular beam epitaxyJournal of Crystal Growth
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Peculiarities of Phase Formation in Mn-Based Na SuperIonic Conductor (NaSICon) Systems: The Case of Na1+2xMnxTi2–x(PO4)3 (0.0 ≤ x ≤ 1.5)

2021

This project has received funding from the European Regional Development Fund (Project no. 01.2.2-LMT-K-718-02–0005) under grant agreement with the Research Council of Lithuania (LMTLT). We thank the High Performance Computing Center “HPC Saulėtekis” at the Faculty of Physics, Vilnius University, for the use of computational resources.

Electrode materialEnergyMaterials scienceGeneral Chemical EngineeringInorganic chemistrychemistry.chemical_element:NATURAL SCIENCES::Physics [Research Subject Categories]Transition metalsGeneral ChemistryManganesePhosphatePhase formationArticleConductorchemistry.chemical_compoundchemistryMaterials ChemistryFast ion conductorDiffractionElectrodesMaterialsChemistry of Materials
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Controlling phase formation in solids: rational synthesis of phase separated Co@Fe2O3 heteroparticles and CoFe2O4 nanoparticles

2011

A wet chemical approach from organometallic reactants allowed the targeted synthesis of Co@Fe(2)O(3) heterodimer and CoFe(2)O(4) ferrite nanoparticles. They display magnetic properties that are useful for magnetic MRI detection.

Materials scienceFerrite nanoparticlesMetals and AlloysContrast MediaMetal NanoparticlesNanoparticleNanotechnologyCobaltGeneral Chemistryequipment and suppliesFerric CompoundsMagnetic Resonance ImagingCatalysisPhase formationSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsMagneticsPhase (matter)Materials ChemistryCeramics and Compositeshuman activitiesChemical Communications
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Mechanically Activated Self-Propagating High Temperature Synthesis (MASHS) Applied to the MoSi<sub>2</sub> and FeSi<sub>2</sub&g…

1999

Materials scienceMechanics of MaterialsMechanical EngineeringMetallurgySelf-propagating high-temperature synthesisGeneral Materials ScienceComposite materialCondensed Matter PhysicsPhase formationMaterials Science Forum
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Influence of pH and temperature on the early stage of mica alteration

2012

Mineral dissolution and precipitation reactions actively participate in controlling fluid chemistry during water–rock interaction. In this study, the changes in the biotite and muscovite basal surface nano-morphology were evaluated during interaction with fluids of different pH (pH = 1.1, 3.3 and 5.7) at different temperatures (T =2 5, 120, and 200 C). Results show that at the nanometre scale resolution of the atomic force microscope (AFM), dissolution generates etch pits with a stair-shaped pattern over the (0 0 1) surface. The flux of dissolved elements decreases when pH increases. However, at pH 5.7, a change was found in the flux after 42 h of reaction when abundant gibbsite and kaolini…

Mineral010504 meteorology & atmospheric sciencesChemistryMuscovite[SDU.STU]Sciences of the Universe [physics]/Earth Sciencesengineering.material010502 geochemistry & geophysics01 natural sciencesPollutionSettore GEO/08 - Geochimica E Vulcanologiaphyllosilicate - water interface neogenic phase formation AFM nanogeochemistryCrystallographyChemical engineeringGeochemistry and PetrologyengineeringEnvironmental ChemistryKaoliniteNanometreMicaGibbsiteDissolutionBiotiteComputingMilieux_MISCELLANEOUS0105 earth and related environmental sciences
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Electrophysical, Magnetoresistivity and Magneto-optical Properties of Multilayer Materials Based on Nanocrystalline and Amorphous Films

2012

In work is presented to the results of complex investigate of phase formation, thermal resistivite, magnetoresistive and magneto-optical properties of multilayers based Fe and Pd, Ag or Ge, which obtained by sequential condensation of the layers with following thermal annealing. Investigation of phase formation processes of thin film systems and established of correlation between this processes and above-mention physical properties. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35009

Thermal coefficient of resistivityPhase formationDouble-layer filmMOKEMagnetoresistanceMultilayerAnnealing
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